Plowshare-fastener.



Patented Man 26, I901.

n. H. SHOCK & L. a. RUSSELL.

PLDWSHARE FASTENEB.

(Application filed. Dec. 14. 1900.) (No Model.)

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UNITED STATES PATENT OFFICE.-

ROY H. SHOCK AND LLOYD B. RUSSELL, OF OKLAHOMA, OKLAHOMA TERRITORY.

PLOWS HARE-FASTEN ER.

SPECIFICATION forming part of Letters Patent No. 670,566, dated March26, 1901 Application filed December 14, 1900. Serial No. 39,862. (Nomodel.)

To alt whom it nutyj concern.-

Be it known that we, ROY H. SHOCK and LLOYD B. RUSSELL, citizens of theUnited States, residing at Oklahoma city, in the county of Oklahoma andTerritory of Oklahoma, have invented a new and usefulPlowshare-Fastener, of which the following is a specification.

Our invention relates to plows of that class in which the share isdetachable from the moldboard; and it consists, specifically, in themeans for fastening the share to the moldboard to permit the detachmentof the share therefrom.

The object of our invention is to effect improvements in theconstruction of the moldboard and share of a plow, whereby the share maybe readily attached to and detached from the moldboard, and in theconstruction of the devices by means of which the share is secured tothe moldboard.

In the drawings, Figure 1 is an elevation showing the inner side of themoldboard and share of a riding or sulky plow provided with our improvedmeans for fastening the share to the moldboard and detaching the sametherefrom. Fig. 2 is a horizontal sectional view of the same, taken on aplane indicated by. the'line a a in Fig. 1. Fig. 3 is a verticalsectional view of the same, taken on a plane indicated by the line b bin Fig. 1. Fig. 4is a detail sectional view. Fig. 5 is a detailperspective view of aportion of the keeper. Fig. 6 is a detailperspective view of one of the keys.

In the embodiment of our invention we provide a moldboard 1 and a share2, which is detachable from the moldboard. The latter is provided on itsinner side with metallic straps or plates 3 4, secured thereto or whichmay be formed integrally therewith,the lower sides of the said straps orplates forming depending flanges 5 6, which overlap a joint 7 betweenthe moldboard and the share and bear on the inner side of the latter,said flanges serving to dispose the share in the same general plane asthat occupied by the moldboard, with the surfaces of the share flushwith the surfaces of the moldboard. The said flanges and the said shareare proflanges 11 on the upper and lower sides of thelongitudinally-movable keeper 12, and thereby secure said keeper 12 tothe said plates 3 4. The said keeper is provided with clearance-openings13, which are adapted to register with the openings of themoldboardflanges and the share. The said keeper is further provided withlongitudinal-slots 14, which communicate with the said clearanceopenings13. The sides of the said slots are formed by wedge-shaped cams 15,which are longitudinally disposed, as shown. A handlever 16 isfulcruined on the inner side of the moldboard on a bolt or stud 17,which oper ates in a slot 18, with which the lever is provided. Thelower end of the lever is pivotally connected to the keeper 12, as at19. The function of the lever, as will be understood, is to move thekeeper longitudinally. When the keeper is moved forward, itsclearance-openings 13 are caused to register with the openings of themoldboard-flanges and the share. Keys 20 are inserted in the saidopenings, the said keys having heads 21,which fit in the countersunkopenings of the share, stems 22,which fit in the openings of themoldboard-flanges, and laterally-extending shoulders 23, which engagethe cams 15 of the keeper when the latter is moved backward by thehand-lever 16, so asto cause the shanks of the keys to be disposed inthe slots 14, the said shoulders 23 and said wedge-shaped earns 15coacting to bind the keys, the share, the

moldboard-flanges, and the keeper firmly together, as will beunderstood, and thereby securely fasten the share to the moldboard. Thesides of the said shoulders 23, which coact with the said wedge-shapedcams 15, are

correspondingly beveled, as at 24.

It will be understood from the foregoing and I too from the moldboardwhen it becomes worn and it is necessary to provide the moldboard withanother share.

lVhile we have herein shown and described our invention as applied tothe moldboard and share of a riding or snlky plow, it will be understoodthat our invention is capable of use in connection With turning-plows ofthe ordinary construction which are provided with detachable shares, andwe do not limit ourselves in this particular.

Having thus described our invention, we claim 1. In a plow, thecombination of a moldboard, a detachable share, said moldboard and sharebeing formed with an overlapping joint between them,alongitudinally-movable keeper on the inner side of the moldboard, saidkeeper having clearance-openings and slots communicating therewith, keysprojecting from the inner side of the share extending through theopenings with which the moldboard is provided and having shouldersengaging the keeper on opposite sides of the said slots, and anoperating-leverconnected to said keeper, substantially as described.

2. In a plow, the combination of a moldboard, a detachable share, saidmoldboard and share being formed with an overlapping joint between them,a longitudinally-movable keeper, having clearance-openings, slotscomshaped cams thereof, substantially as dcscribed.

3. In a plow, the combination of a share, a moldboard, the former beingdetachable from the latter, said share and moldboard having anoverlapping joint formed between them and provided with registeringopenings, keys fitted in said openings and having engaging shoulders attheir inner ends, a longitudinallymovable keeper havingclearance-openings for said shoulders and slots communicating with saidclearance-openings, whereby the said keeper may be engaged at points onthe sides of said slots, by the said shoulders of said keys, for thepurpose set forth, substantially as described.

In testimony that we claim the foregoing as our own we have heretoaffixed our signatures in the presence of two witnesses.

ROY H. SHOCK. LLOYD B. RUSSELL.

Witnesses:

C. R. FULLER, S. W. STINsoN.

